I currently am running these speakers on a Denon 1602, which is a very low end receiver. I have decided it is time to upgrade, as I just heard my M80's on a higher end receiver, and there was clearly a difference, especially in the power and sound of the bass.

As is, I am looking at a few used units, either Denon 3805 or HK AVR 435 or 635. Do any of you have experience with these units combined with these speakers?

The Denon has some nicer features in terms of HDCD and Pure Direct mode.

However the HK has a built in auto EQ and I have always been told that HK amps are stronger.

I am also hoping this will have the Ext Inputs for HD DVD and/or Bluray inputs. Are those 7.1 discreet or more channels?

Thanks for any info in helping me choose.

Best wishes in 2007.